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| 1 | +#!/usr/bin/env bash |
| 2 | +set -eu |
| 3 | + |
| 4 | +VALIDATORS_PER_NODE=${VALIDATORS_PER_NODE:-1} |
| 5 | +PUBLISHERS_PER_VALIDATOR_KEY=${PUBLISHERS_PER_VALIDATOR_KEY:-1} |
| 6 | + |
| 7 | +# We get the index in the config map from the pod name, which will have the service index within it |
| 8 | +# For multiple validators per node, we need to multiply the pod index by VALIDATORS_PER_NODE |
| 9 | +POD_INDEX=$(echo $K8S_POD_NAME | awk -F'-' '{print $NF}') |
| 10 | +KEY_INDEX=$((POD_INDEX * VALIDATORS_PER_NODE)) |
| 11 | +# Add the index to the start index to get the private key index |
| 12 | +PRIVATE_KEY_INDEX=$((KEY_INDEX_START + KEY_INDEX)) |
| 13 | + |
| 14 | +# Calculate publisher key starting index for this pod |
| 15 | +PUBLISHER_KEY_INDEX=$((POD_INDEX * VALIDATORS_PER_NODE * PUBLISHERS_PER_VALIDATOR_KEY + PUBLISHER_KEY_INDEX_START)) |
| 16 | + |
| 17 | +WEB3_SIGNER_URL=${WEB3_SIGNER_URL:-""} |
| 18 | + |
| 19 | +echo "POD_INDEX: $POD_INDEX" |
| 20 | +echo "KEY_INDEX: $KEY_INDEX" |
| 21 | +echo "KEY_INDEX_START: $KEY_INDEX_START" |
| 22 | +echo "PRIVATE_KEY_INDEX: $PRIVATE_KEY_INDEX" |
| 23 | +echo "PUBLISHER_KEY_INDEX_START: $PUBLISHER_KEY_INDEX_START" |
| 24 | +echo "PUBLISHER_KEY_INDEX: $PUBLISHER_KEY_INDEX" |
| 25 | +echo "WEB3_SIGNER_URL: ${WEB3_SIGNER_URL}" |
| 26 | +# Specific for validators that can hold multiple keys on one node |
| 27 | +echo "VALIDATORS_PER_NODE: ${VALIDATORS_PER_NODE}" |
| 28 | +echo "PUBLISHERS_PER_VALIDATOR_KEY: ${PUBLISHERS_PER_VALIDATOR_KEY}" |
| 29 | +echo "MNEMONIC: $(echo $MNEMONIC | cut -d' ' -f1-2)..." |
| 30 | + |
| 31 | +private_keys=() |
| 32 | +addresses=() |
| 33 | + |
| 34 | +# Generate validator keys (attesters) |
| 35 | +for ((i = 0; i < VALIDATORS_PER_NODE; i++)); do |
| 36 | + current_index=$((PRIVATE_KEY_INDEX + i)) |
| 37 | + private_key=$(cast wallet private-key "$MNEMONIC" --mnemonic-index $current_index) |
| 38 | + address=$(cast wallet address --private-key $private_key) |
| 39 | + |
| 40 | + if [ -z "$WEB3_SIGNER_URL" ]; then |
| 41 | + private_keys+=("$private_key") |
| 42 | + fi |
| 43 | + addresses+=("$address") |
| 44 | +done |
| 45 | + |
| 46 | +# Generate publisher keys |
| 47 | +publisher_private_keys=() |
| 48 | +publisher_addresses=() |
| 49 | + |
| 50 | +total_publishers=$((VALIDATORS_PER_NODE * PUBLISHERS_PER_VALIDATOR_KEY)) |
| 51 | + |
| 52 | +for ((i = 0; i < total_publishers; i++)); do |
| 53 | + current_pub_index=$((PUBLISHER_KEY_INDEX + i)) |
| 54 | + pub_private_key=$(cast wallet private-key "$MNEMONIC" --mnemonic-index $current_pub_index) |
| 55 | + pub_address=$(cast wallet address --private-key $pub_private_key) |
| 56 | + |
| 57 | + publisher_private_keys+=("$pub_private_key") |
| 58 | + publisher_addresses+=("$pub_address") |
| 59 | +done |
| 60 | + |
| 61 | +remoteSigner="" |
| 62 | +attesters=() |
| 63 | +publishers=() |
| 64 | + |
| 65 | +if [ -n "$WEB3_SIGNER_URL" ]; then |
| 66 | + remoteSigner=$(jq -n '{remoteSignerUrl: $url}' --arg url "$WEB3_SIGNER_URL") |
| 67 | + attesters=(${addresses[*]}) |
| 68 | + # TODO: switch to addresses once web3signer supports EIP-4844 txs. See https://github.com/Consensys/web3signer/pull/1096 |
| 69 | + publishers=(${publisher_private_keys[*]}) |
| 70 | +else |
| 71 | + remoteSigner="null" |
| 72 | + attesters=(${private_keys[*]}) |
| 73 | + # Without web3signer, use private keys for publishers |
| 74 | + publishers=(${publisher_private_keys[*]}) |
| 75 | +fi |
| 76 | + |
| 77 | +export KEY_STORE_DIRECTORY="/shared/config/keys" |
| 78 | +mkdir -p "$KEY_STORE_DIRECTORY" |
| 79 | + |
| 80 | +# Build validators array with multiple entries |
| 81 | +validators_json="[" |
| 82 | +for ((v = 0; v < VALIDATORS_PER_NODE; v++)); do |
| 83 | + if [ $v -gt 0 ]; then |
| 84 | + validators_json+="," |
| 85 | + fi |
| 86 | + |
| 87 | + # Get the attester for this validator |
| 88 | + if [ -n "$WEB3_SIGNER_URL" ]; then |
| 89 | + attester="${addresses[$v]}" |
| 90 | + else |
| 91 | + attester="${private_keys[$v]}" |
| 92 | + fi |
| 93 | + |
| 94 | + # Get the publisher keys for this validator |
| 95 | + validator_publishers="[" |
| 96 | + for ((p = 0; p < PUBLISHERS_PER_VALIDATOR_KEY; p++)); do |
| 97 | + if [ $p -gt 0 ]; then |
| 98 | + validator_publishers+="," |
| 99 | + fi |
| 100 | + pub_index=$((v * PUBLISHERS_PER_VALIDATOR_KEY + p)) |
| 101 | + validator_publishers+="\"${publishers[$pub_index]}\"" |
| 102 | + done |
| 103 | + validator_publishers+="]" |
| 104 | + |
| 105 | + |
| 106 | + validators_json+="{ |
| 107 | + \"attester\": \"$attester\", |
| 108 | + \"coinbase\": \"$attester\", |
| 109 | + \"publisher\": $validator_publishers, |
| 110 | + \"feeRecipient\": \"0x0000000000000000000000000000000000000000000000000000000000000000\" |
| 111 | + }" |
| 112 | +done |
| 113 | +validators_json+="]" |
| 114 | + |
| 115 | +# Create final JSON structure |
| 116 | +jq -n --argjson remoteSigner "$remoteSigner" \ |
| 117 | + --argjson validators "$validators_json" \ |
| 118 | +'{ |
| 119 | + schemaVersion: 1, |
| 120 | + remoteSigner: $remoteSigner, |
| 121 | + validators: $validators |
| 122 | +}' > "$KEY_STORE_DIRECTORY/attesters.json" |
| 123 | + |
| 124 | +echo "Generated configuration for $VALIDATORS_PER_NODE validators with $PUBLISHERS_PER_VALIDATOR_KEY publishers each" |
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